Labour MP Dover Samuels appears to have been caught up in an embarrassing incident in an Auckland hotel.

Newstalk ZB says Samuels told them he urinated in a corridor of the Heritage Hotel nearly three weeks ago after attending a function.

The radio station says Samuels told them he couldn't get into his room because of a faulty key, and relieved himself in front of the duty manager.

Samuels had earlier denied any incident when contacted by One News.

The hotel has refused to comment.